... 2.Cu%:56%-60% 3.Thread standard:ISO,DIN,GB,JIS 4.Thread specification:G,R,NPT,NSP Ppr ... ) PPR is from Chinese Yanshan Petrochimical2. Thread standard: GB, BS, JIS, ISO3. Thread type: G, R, NPT, BSP and so ... on. 2. Pressure Grade: 1.6MPa.3. Design standard: GB/T8464-20084. Pipe thread ... system for other industries and agriculture. High quality female thread PPR valve